What is property? An inquiry into the principle of right and of government is a philosophical and political work that critically examines the foundations of ownership, justice, and governance. Opening with a bold challenge to established definitions of property, the text questions whether the institution truly serves fairness or perpetuates inequality. The author argues that conventional justifications - be they rooted in labor or codified in law - collapse under close scrutiny, framing property as an effect without a legitimate cause. This notion unsettles the moral and legal frameworks upon which societies have long relied, sparking debate on whether such systems genuinely uphold collective well-being. Through rigorous analysis, the work dismantles entrenched beliefs about economic rights and calls for a reimagining of social order based on equity and moral justice. The early chapters set the stage for an uncompromising critique of economic and political structures, urging readers to confront the implications of ownership and explore pathways toward a society guided by fairness and shared responsibility.